The best things to do while writing a shape poem is choose and concentrate on the shape first. It is better if you start off with simple shapes such as a heart or a diamond then after a few tries move on to harder shapes. The poem can be about anything: a hobby, an interest or a passion. It is better if the content of the poem reflects the shape. They are great fun to write and suitable for all ages. You should try one! Here is an example I wrote:

A
Star
High up
Shone bright
Glistening above us
In the radiant moon light
Whilst all of Gods creations rest blissfully
It flouts above us and defies gravity
The night glows with its beauty
Ohm you little star!
Bringing a flame to the dark sky
As well as splendor to thy naked eye
While the sun appears to you we say goodbye
Wondering and praying
To see you again
While shining
Brightly
In the
Sky